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Show Study Flyers' Sight at Wilmer Institute Baltimore. The effect on vision of the extremely high altitude at which aviators fly is a subject of intensive research In the laboratories of the new Wilmer Institute of St Johns Hopkins university and Johns Hopkins hospital. It is hoped that the outcome out-come of the study and research at tbe Institute In connection with the visual difficulties of aviators will contribute to the solution of many of the problems prob-lems that are presented In the field of aviation. Doctor Wilmer, head of the Institute Insti-tute that bears his name, became Interested In-terested In the problems of eyesight of aviators during the World war. He entered the army as colonel in the medical corps and directed the work of the medical research laboratories of the air service in Investigating, among other problems, the effect of high altitude on vision. An Instrument, Instru-ment, known as the Henderson-Pierce rebrenttiiiig apparatus, was developed, which produces In a man In the lah-omtory lah-omtory an effect similar to thnt which he would experience at high altitudes. |